The most inclusive level of hierarchical classification is Domain, since in that group, there are found multiple Phylum, Kingdom, Genus, and Species.
This system of classification is what we know as taxonomy, what is a tool scientists use to organize more similar species together. We can see that the main groups of the classification are the ones listed below:
Domain
Phylum
Kingdom
Class
Order
Family
Genus
Species
And we, as human beings, but also as Homo sapiens classifies us in the Eukarya domain, in the Chordata phylum, in the Animalia kingdom, in the Mammalia class, in the Primates order, in the Homindae family, in the Homo genus, and in the sapiens species.